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55372607 = 107517501
BaseRepresentation
bin1101001100111…
…0101100111111
310212012012221022
43103032230333
5103133410412
65254454355
71241442113
oct323165477
9125165838
1055372607
1129290294
12166643bb
13b619974
1474d5743
154cdba72
hex34ceb3f

55372607 has 4 divisors (see below), whose sum is σ = 55890216. Its totient is φ = 54855000.

The previous prime is 55372589. The next prime is 55372613. The reversal of 55372607 is 70627355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70627355 = 514125471.

It is a cyclic number.

It is not a de Polignac number, because 55372607 - 216 = 55307071 is a prime.

It is a super-2 number, since 2×553726072 = 6132251211952898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55372637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258644 + ... + 258857.

It is an arithmetic number, because the mean of its divisors is an integer number (13972554).

Almost surely, 255372607 is an apocalyptic number.

55372607 is a deficient number, since it is larger than the sum of its proper divisors (517609).

55372607 is a wasteful number, since it uses less digits than its factorization.

55372607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517608.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 55372607 is about 7441.2772425169. The cubic root of 55372607 is about 381.1521059416.

The spelling of 55372607 in words is "fifty-five million, three hundred seventy-two thousand, six hundred seven".

Divisors: 1 107 517501 55372607